Items from the former estate known as the Winter White House will be auctioned Jan. 23. The 11-bedroom oceanfront mansion, listed for $38.5 million, was designed by renowned architect Addison Mizner in the 1920s. Joseph P. Kennedy Sr. paid $120,000 for the home in 1933. John F. Kennedy took frequent trips to the estate during his presidency. He spent his last weekend there before his assassination in 1963.